78836247

素因数分解:

$3^6\times 7^2\times {\mathrm{2207}}^1$

素因数の和:2239

約数の個数: 42

約数和(自身を含む): 137560608

約数和(自身を除く): 58724361

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 729, 1323, 1701, 2207, 3969, 5103, 6621, 11907, 15449, 19863, 35721, 46347, 59589, 108143, 139041, 178767, 324429, 417123, 536301, 973287, 1251369, 1608903, 2919861, 3754107, 8759583, 11262321, 26278749, 78836247]

約数ペア:

[(1, 78836247), (3, 26278749), (7, 11262321), (9, 8759583), (21, 3754107), (27, 2919861), (49, 1608903), (63, 1251369), (81, 973287), (147, 536301), (189, 417123), (243, 324429), (441, 178767), (567, 139041), (729, 108143), (1323, 59589), (1701, 46347), (2207, 35721), (3969, 19863), (5103, 15449), (6621, 11907)]